Chinese emperor that cared more for country than siblings

Anyone really familiar with Chinese history or legend? I need a story about a Chinese emperor or tua kee ruler, official or general punishing his siblings or other relatives for hurting the state or breaking the law? A person that put the country or rule of law above family ties. I can’t think of anything from the “Romance of the Three Kingdoms” or “All Men are Brothers”, my reference books on Chinese history and legend.

Will be interesting if in Chinese history or legend no-one powerful put the rule of law or country before family.

Otherwise I will have to relate story from Roman “history” to make the point about putting rule of law or country before family. But I’m no ang moh tua kee.

If anyone got a Indian or Malay story on the issue, I’m also interested. Can make multi-racial and cultural the point about putting country or rule of law before family.